Ductile Iron Double Flanged 45 Deg Bends ISO2531, EN545 DN80-DN1800 Epoxy coating/ ... , machining & welding by a lot of material, such as ductile iron, stainless steel, aluminum, brass etc. We have supplied good quality ... good reputation. For the specification of Ductile Iron Double Flanged 45 Deg Bends: 1. Material: Ductile Iron GGG45, GGG50. 2. Dimension: DN50-DN2000 ...